﻿<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>/* javascript中变量时按照值进行传递的。 */

    <script type="text/javascript">
        var i = 0;
        (function(val) {
            val++;
            alert(val);
        })(i);
        alert(i);
    </script>

</head>
<body>
</body>
</html>
